This document outlines the agenda for a Rancher meetup on tips and tricks for running containers like a pro. The agenda includes presentations on integrated secrets management, autoscaling with Rancher webhooks, using Traefik for load balancing, and the Kubernetes dashboard and Helm. It also provides information on the latest Rancher releases.

1. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
More Tips and Tricks for
Running Containers like a Pro
February 28, 2017
#ranchermeetup

2. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Shannon Williams
Co-Founder/VP Sales
@smw355
1
Darren Shepherd
Co-Founder/Chief Architect
@ibuildthecloud
Freenode: darren0
#ranchermeetup

3. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Rajashree
Mandaogane
Software Engineer
Rancher Labs
@rajashree_28
2 #ranchermeetup
Bill Maxwell
Sr. Devops Lead
Rancher Labs
@cloudnautique

4. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Sidhartha Mani
Software Engineer
Rancher Labs
@utter_babbage
3 #ranchermeetup
Raul Sanchez
Sr. Field Engineer
Rancher Labs
@rawmindNet

5. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
First things first…
This is a not a !
4 #ranchermeetup

6. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .5
There are rules for a meetup!
• We won’t be done on time
• Questions are always welcome
• Demo, then demo some more
• Things will break, be patient
#ranchermeetup

7. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .6
Join the conversation on Twitter
#ranchermeetup

8. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Agenda
• Integrated Secrets Management – Bill
• Autoscaling with Rancher webhooks – Rajashree
• Hand-on with Traefik – Raul
• Using the Kubernetes Dashboard and Helm – Sidhartha
• Latest Releases – Darren
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9. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Rancher Labs
8 #ranchermeetup
An open-source software platform for
managing containers
A minimalist OS built explicitly to run
Docker

10. © 2017 Rancher Labs, Inc.
A complete container management
platform that makes it easy to…
9
INNOVATE WITH CONTAINERS
without compromising flexibility by empowering developers with fast
access to the latest tools
MANAGE APPLICATIONS
by simplifying day to day application lifecycle management
RUN CONTAINERS
with the most complete set of container and infrastructure
management capabilities
Production ready
✔ 20 million+ downloads
✔ Open platform for
innovating
✔ Easy to use interface
✔ Multi-tenant
✔ Role based access
✔ 24X7 support
✔ And more….

11. © 2017 Rancher Labs, Inc.
Complete
Container
Management
Platform
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Application Catalog
Container Orchestration and SchedulingUser Mgmt
RBAC
AD/LDAP
SAML
Ops Mgmt
CI/CD
Registries
Monitoring
Networking
Multi-tenant Environments
Environment 1 Environment N
Infrastructure Services
Storage
……. ..Environment 2
Security DNS/LB

12. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .#ranchermeetup
Tips, Tricks
and Tools for
Running
Containers
Like a Pro

13. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .12
https://youtu.be/ZovLwCvb2Is

14. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Integrated Secrets Management
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15. © 2017 Rancher Labs, Inc.
New Components

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Secrets Creation Flow

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Secret Container Flow

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 Lock down the local key at rest.
 Vault:
 Support storing secrets in Vault secrets backend.
 Long Term improvements
 Signing Public Keys
 Create and deploy Vault tokens.
Road to GA

19. © 2017 Rancher Labs, Inc.
 Docs:
http://docs.rancher.com/rancher/v1.4/en/cattle/s
ecrets/
 Repos:
 Github.com/rancher/secrets-api
 Github.com/rancher/secrets-flexvol

Resources

20. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .19
Demo
#ranchermeetup

21. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Scaling in Rancher with Webhooks
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• Scaling of services
• Scaling of hosts
• Upgrading services
based on Docker Hub
webhooks

22. © 2017 Rancher Labs, Inc.
Autoscaling using webhooks
• Create webhooks for scaling up/down a service
• Configure an external service to monitor it,
example Prometheus
• Prometheus raises alerts and triggers
configured webhooks
• Webhook-service handles scaling

23. © 2017 Rancher Labs, Inc.
Webhooks for service upgrade
• Add receiver hook to use as a Docker Hub
webhook for an image
• When any tag of the image is pushed, webhook
is triggered
• Webhook-service upgrades all services based
on service selectors used while creating receiver
hook

24. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .23
Demo
#ranchermeetup

25. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Hands on with Træfik
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• Træfik is a modern HTTP
reverse proxy and load balancer
made to deploy microservices
with ease

26. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Architecture

27. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Internal Logic

28. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Static config
# traefik.toml
logLevel = "INFO"
traefikLogsFile = "/opt/traefik/log/traefik.log"
accessLogsFile = "/opt/traefik/log/access.log"
defaultEntryPoints = ["http", "https"]
[entryPoints]
[entryPoints.http]
address = ":8080"
[entryPoints.https]
address = ":8443"
[entryPoints.https.tls]
[[entryPoints.https.tls.certificates]]
certFile = "/opt/traefik/certs/traefik.crt"
keyFile = "/opt/traefik/certs/traefik.key"
[web]
address = ":8000"
[file]
filename = "/opt/traefik/etc/rules.toml"
watch = true

29. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Dynamic config
[backends]
[backends.web-test__webtest]
[backends.web-test__webtest.circuitbreaker]
expression = "NetworkErrorRatio() > 0.5"
[backends.web-test__webtest.LoadBalancer]
method = "drr"
[backends.web-test__webtest.servers.webtest-web-test-1]
url = "http://10.42.115.5:8080"
weight = 0
[backends.web-test__webtest.servers.webtest-web-test-2]
url = "http://10.42.90.235:8080"
weight = 0
[backends.web-test__webtest.servers.webtest-web-test-3]
url = "http://10.42.251.194:8080"
weight = 0
[frontends]
[frontends.web-test__webtest]
backend = "web-test__webtest"
passHostHeader = true
priority = 5
[frontends.web-test__webtest.routes.service]
rule = "Host:webtest.local,test2.local,test3.local;"

30. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Catalog
- Admin ui
- http and https ports
- Deploy by host label
- https and sticky bit support
- Letsencrypt (ACME) support
- Autoconfig by services labels
TODO
- Rancher internal certs and sni
- Real time backend update and traefik built in support
https://github.com/containous/traefik/pull/1173
Will be included in traefik release v1.2.0-rc2

31. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Catalog

32. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Service labels
- traefik.enable = <true | stack | false>
- true: the service will be published as *service_name.stack_name.traefik_domain*
- stack: the service will be published as *stack_name.domain*. WARNING of collisions
- false: the service will not be published
- traefik.priority = <priority> # Override for frontend priority. 5 by default
- traefik.protocol = <http | https> # Override the default http protocol
- traefik.sticky = <true | false> # Enable/disable sticky sessions to the backend
- traefik.alias = <alias> # Alternate names to route rule. traefik.domain is appended
- traefik.alias.fqdn = < alias fqdn > # Alternate names to route rule. traefik.domain is not appended.
- traefik.domain = < domain.name > # Domain names to route rules. Multiple domains separated by ","
- traefik.domain.regexp = < domain.regexp > # Domain name regexp rule. Multiple domains separated by ","
- traefik.port = <port> # port to expose throught traefik
- traefik.acme = < true | false > # Enable/disable ACME traefik feature
- traefik.path = < path > # Path rule. Multiple values separated by ","
- traefik.path.strip = < path > # Path strip rule. Multiple values separated by ","
- traefik.path.prefix = < path > # Path prefix rule. Multiple values separated by ","
- traefik.path.prefix.strip = < path > # Path prefix strip rule. Multiple values separated by ","
WARNING: Only services with healthy state are added to traefik, so health checks are mandatory.

33. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .32
Demo
#ranchermeetup

34. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Using the Kubernetes Dashboard and Helm
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35. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Kubernetes Dashboard
• Web based Kubernetes control UI
• Deploy applications
• Provides overview of various Kubernetes resources
• Provides a log viewer for easy debugging
34 #ranchermeetup

36. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Kubernetes Helm
• Package manager for Kubernetes
• Supports private repositories
• Search for packages
• Configure and Install packages
• Delete packages
35 #ranchermeetup

37. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .36
Demo
#ranchermeetup

38. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Latest Release
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Rancher 1.4 – February 4, 2017
Key Features:
- Kubernetes Dashboard & Helm
- Webhooks
- Network Policies
- Multi-IP Host Scheduling
- Secrets Management (Experimental)

39. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Next Releases
38
Rancher 1.5 – Early March
Key features:
- Catalog Enhancements – Ability to add catalogs per environment
- Additional Webhooks – Host scaling, service redeploy
- Additional Network Policies – Enhances network policies to support services that are linked
- API Interceptor – Admins can now configure pre and post filter hooks into Rancher API
requests
- Metadata Refactoring – Improvements to allow increased environment scaling

40. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Getting Started
Rancher and RancherOS are in GitHub – Get Involved!
39 #ranchermeetup
http://github.com/rancher

41. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Even better - try.rancher.com…
40

42. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Then join a free training class…
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http://rancher.com/training

43. © 2017 Rancher Labs, Inc.© 2017 Rancher Labs, Inc .
Thank you
rancher.com
#ranchermeetup